General

  • Target

    76741721aede86e5d9a78da5dd349cc7f418a993eba77457c00b27aa627f9882.elf

  • Size

    549KB

  • Sample

    240324-cw99xabb4s

  • MD5

    455b46bf3f93b8853137de2b99ef0f4c

  • SHA1

    99387d92aee1ad50c8af0a5192f651ad8021d1d4

  • SHA256

    76741721aede86e5d9a78da5dd349cc7f418a993eba77457c00b27aa627f9882

  • SHA512

    a43cc62e55da2d23f2f57bffc3e2f3e406e41b0e1ba24b38d274a12e25d87d005f89f03e98c4fbf91622b75a4009c38033ea9d74316696469d26f9ea3a3237fa

  • SSDEEP

    12288:VeRvuKqiVZ4En5drNK0pPEfJKlHZ8mG97Qxee6yzmx6:VIv/qiVNHNDEfJKHZ8mG9QeeO6

Malware Config

Extracted

Family

xorddos

C2

bb.markerbio.com:13307

bb.myserv012.com:13307

http://qq.com/lib.asp

Attributes
  • crc_polynomial

    CDB88320

xor.plain

Targets

    • Target

      76741721aede86e5d9a78da5dd349cc7f418a993eba77457c00b27aa627f9882.elf

    • Size

      549KB

    • MD5

      455b46bf3f93b8853137de2b99ef0f4c

    • SHA1

      99387d92aee1ad50c8af0a5192f651ad8021d1d4

    • SHA256

      76741721aede86e5d9a78da5dd349cc7f418a993eba77457c00b27aa627f9882

    • SHA512

      a43cc62e55da2d23f2f57bffc3e2f3e406e41b0e1ba24b38d274a12e25d87d005f89f03e98c4fbf91622b75a4009c38033ea9d74316696469d26f9ea3a3237fa

    • SSDEEP

      12288:VeRvuKqiVZ4En5drNK0pPEfJKlHZ8mG97Qxee6yzmx6:VIv/qiVNHNDEfJKHZ8mG9QeeO6

    • XorDDoS

      Botnet and downloader malware targeting Linux-based operating systems and IoT devices.

    • XorDDoS payload

    • Deletes itself

    • Executes dropped EXE

    • Creates/modifies Cron job

      Cron allows running tasks on a schedule, and is commonly used for malware persistence.

    • Enumerates active TCP sockets

      Gets active TCP sockets from /proc virtual filesystem.

    • Enumerates running processes

      Discovers information about currently running processes on the system

    • Modifies init.d

      Adds/modifies system service, likely for persistence.

    • Write file to user bin folder

MITRE ATT&CK Enterprise v15

Tasks